How do you write hard working in sanskrit?

There isn't a single, perfect Sanskrit word for "hard working" in the English sense. It's a concept that needs to be conveyed through a phrase. Here are a few options, depending on the specific nuance you want to express:

Emphasis on Effort:

* परिश्रमी (parishrami): This is a common word for someone who puts in a lot of effort, implying diligence and perseverance.

* अथक (athaka): This emphasizes tireless effort, someone who doesn't give up easily.

* कर्मठ (karmaṭha): This refers to someone who is strong and capable in their work, suggesting efficiency and skill.

Emphasis on Dedication:

* नियत (niyata): This implies a dedication to one's tasks, a sense of commitment.

* निष्ठा (nisṭhā): This signifies a strong sense of loyalty and faithfulness to one's work.

Emphasis on Skill:

* कुशल (kusala): This means skilled or adept, implying a high level of proficiency.

Phrases:

* परिश्रमशील (parishramashīla): This combines the root "parishram" (effort) with "shīla" (character), suggesting someone who is naturally hardworking.

* निष्ठावान् (niṣṭhāvān): This combines "niṣṭhā" (loyalty) with "vān" (possessing), emphasizing dedication and commitment.

The best choice depends on the context and the specific qualities you want to highlight.